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  • 42.55M  (2)
  • 42.55.Rz  (1)
  • Springer  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Steady state photoisomer accumulation in the absorber jet of the passively mode-locked femtosecond dye laser (1988)
    Springer
    Applied physics 46 (1988), S. 357-361 
    Details
    ISSN: 1432-0649
    Keywords: 42.55M
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In continuous were passively mode-locked dye lasers a steady state distribution of two isomers of the saturable absorber dye can be established. We report the first intracavity transmission measurement and estimation of the amount of the photoisomer of DODCI in the femtosecond CPM ring laser. Comparison with a simple model based on rate equations allows to estimate the quantum yield of a photo-back reaction. The obtained dependence of the photoisomer concentration on the laser wavelength and pulse energy can be used in theories describing the generation process for adequate estimation of its part in the modelocking regime.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00686459
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  • 2
    Electronic Resource
    Electronic Resource
    Combined self-phase modulation and amplification of femtosecond light pulses (1989)
    Springer
    Applied physics 49 (1989), S. 113-119 
    Details
    ISSN: 1432-0649
    Keywords: 42.55M ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The influence of depletable amplification, group velocity dispersion and self-phase modulation due to Kerr-type nonlinearity on pulse shaping in femtosecond pulse amplification has been calculated. With gain depletion which is typical for the last stage of multi-stage amplifiers, spectral broadening occurs which, under certain conditions, can be utilized for pulse compression. This spectral broadening as well as a predicted spectral shift is compared with experimental results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332270
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  • 3
    Electronic Resource
    Electronic Resource
    Theory of passive mode locking of colour-center lasers by a fast saturable absorber (1993)
    Springer
    Applied physics 57 (1993), S. 359-366 
    Details
    ISSN: 1432-0649
    Keywords: 42.60.Fc ; 42.55.Rz
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A theoretical model of passive mode locking of colour-center lasers by an effective fast saturable absorber is presented where a hybrid saturation scheme is applied to consider the interaction of the mode-locked pulse with the gain medium. Intracavity group-velocity dispersion and Kerr-type nonlinearity are taken into account and their combined action can result in solition-like pulse shaping and shortening. Chirped steady-state solutions whose carrier frequency can be shifted with respect to the central frequency of the gain are found in a limited range of the parameters specifying the problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00332461
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